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modules.


=item B<--perl-version>=I<s>

Perl version to use (overrides scan_prereqs/dist.ini).

=item B<--scanner>=I<s>

Which scanner to use.

Default value:

 "regular"

Valid values:

 ["regular","lite","nqlite"]

C<regular> means L<Perl::PrereqScanner> which is PPI-based and is the slowest
but has the most complete support for Perl syntax.

C<lite> means L<Perl::PrereqScanner::Lite> has uses an XS-based lexer and is
the fastest but might miss some Perl syntax (i.e. miss some prereqs) or crash if
given some weird code.

C<nqlite> means L<Perl::PrereqScanner::NotQuiteLite> which is faster than
C<regular> but not as fast as C<lite>.


=back

=head2 Configuration options

=over

=item B<--config-path>=I<s>, B<-c>

Set path to configuration file.

Can actually be specified multiple times to instruct application to read from
multiple configuration files (and merge them).


=item B<--config-profile>=I<s>, B<-P>

Set configuration profile to use.

A single configuration file can contain profiles, i.e. alternative sets of
values that can be selected. For example:

 [profile=dev]
 username=foo
 pass=beaver
 
 [profile=production]
 username=bar
 pass=honey

When you specify C<--config-profile=dev>, C<username> will be set to C<foo> and
C<password> to C<beaver>. When you specify C<--config-profile=production>,
C<username> will be set to C<bar> and C<password> to C<honey>.


=item B<--no-config>, B<-C>

Do not use any configuration file.

If you specify C<--no-config>, the application will not read any configuration
file.


=back

=head2 Environment options

=over

=item B<--no-env>

Do not read environment for default options.

If you specify C<--no-env>, the application wil not read any environment
variable.


=back

=head2 Logging options

=over

=item B<--debug>

Shortcut for --log-level=debug.

=item B<--log-level>=I<s>

Set log level.

By default, these log levels are available (in order of increasing level of
importance, from least important to most): C<trace>, C<debug>, C<info>,
C<warn>/C<warning>, C<error>, C<fatal>. By default, the level is usually set to
C<warn>, which means that log statements with level C<info> and less important
levels will not be shown. To increase verbosity, choose C<info>, C<debug>, or
C<trace>.

For more details on log level and logging, as well as how new logging levels can
be defined or existing ones modified, see L<Log::ger>.


=item B<--quiet>

Shortcut for --log-level=error.

=item B<--trace>

Shortcut for --log-level=trace.

=item B<--verbose>

Shortcut for --log-level=info.